The control portion of the training course combined theoretical with practical work important in the application of chemical and alternative products using ULV techniques. These included swath width, droplet size and behaviour, spraying conditions, sprayer types and calibration, demarcating and monitoring. On the last day, participants went to the field to find, mark and spray mock hopper bands.
Marking an area to
spray during the swath width exercise Collecting droplet
samples to measure swath width Examining
droplets Demonstrating
droplet sizes Calibrating a
vehicle-mounted sprayer Measuring
temperature before mock control operations Preparing to spray
with water Treating a mock
hopper band with a handheld sprayer A ground control
team heading to the next spray target
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